Jain, S., Dushyant, R. and Arora, K. K. (2014) “Intrathecal Tramadol for prevention of shivering in Anorectal surgeries under Sub arachnoid anaesthesia”, International Journal of Medical Research and Review, 2(3), pp. 190-193. doi: 10.17511/ijmrr.2014.i03.04.